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WD Red Pro WD122KFBX 12 TB
512 MB

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WD WD122KFBX
Red (NAS)5 year warranty
2 TB
64/7200 CMR
4 TB
5FFBX
4 TB
64/7200
4 TB
256/7200
6 TB
6001FFWX
6 TB
6002FFWX
6 TB
6003FFBX
6 TB
6005FFBX
8 TB
256/7200
10 TB
256/7200 CMR
10 TB
512/7200 CMR
12 TB
256 MB
12 TB
512 MB
14 TB
141KFGX
14 TB
142KFGX
16 TB18 TB20 TB22 TB24 TB
Placement
built-in
Type
HDD
Features
server
Size
12000 GB
Form factor
3.5 "
Connection
SATA3
Manufacturer's warranty
5 years
Cache memory
512 MB
Record technology
CMR
RPM
7200 rpm
Data transfer rate
267 MB/s
Operation power consumption
8.8 W
Standby power consumption
6.1 W
Reading noise level
39 dB
Standby mode noise level
34 dB
MTBF
2 M h
MTBF
600 K
Size
147x102x26 mm
Weight
750 g
Added to E-Catalog
April 2025
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Buy WD Red Pro WD122KFBX 12 TB
512 MB

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WD Red Pro 12TB 7200RPM 512MB Cache 3.5" SATA HDD WD122KFBX

WD 12TB Red Pro NAS Hard Drive (WD122KFBX) Demand peak performance from your NAS? The WD Red Pro 12TB hard drive (WD122KFBX)... moredelivers enterprise-grade reliability and speed for demanding, always-on network-attached storage (NAS) environments. Built for medium to large-scale businesses and professionals requiring robust data storage and retrieval, this drive ensures seamless operation in 24/7 multi-user scenarios. Experience the difference between a drive designed for the job and a repurposed desktop solution. Features 12TB capacity for extensive data storage 7200 RPM spindle speed for fast data access 512MB cache for enhanced performance NASware™ technology for optimized NAS system compatibility and performance Rotation Vibration (RV) sensors to minimize vibration and maintain performance in multi-bay systems Multi-axis shock sensor with dynamic fly height technology for enhanced shock protection Designed for 24/7 operation in high-intensity, multi-user NAS environments 5-year limited warranty for peace of mind Specifications Brand: WD Model Number: WD122KFBX EAN: 718037901282 Capacity: 12TB Interface: SATA 6Gb/s Spindle Speed: 7200 RPM Cache: 512MB Form Factor: 3.5-inch Warranty: 5 years
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Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III WD122KFBX

12 TB 3.5" 7200 RPM Serial ATA III. NAS HDD. Storage drive buffer size: 512 MB. 6 Gbit/s. Enterprise-class hard drives engine... moreered to deliver high performance and reliability to commercial and enterprise NAS environments.. WD Red® Pro drives are engineered to handle high-intensity workloads in 24×7 multi-user commercial and enterprise NAS environments. WD Red Pro drives deliver the performance, scalability and dependability businesses require to store, share and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems.. Optimized for NAS with NASware™. Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads, which helps increase performance and reliability.. Designed for Continuous Operation. WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability.. Tested for Dependable Compatibility. Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.. Protected against Excessive Vibration. WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis, turbulence is minimized, performance is maintained and drives are protected.. Built to Absorb Shock. WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.. Engineered with Industry-Leading Technology. WD Red Pro 22TB and 24TB hard drives feature Western Digital’s proprietary OptiNAND™ technology which leverages integrated iNAND embedded flash to perform key housekeeping functions, freeing up more capacity and improving the overall drive performance.. Backed by World-Class Support and Warranty. As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle free data storage.. Features. Average latency. 4.16 ms. HDD average transfer rate. 267 MB/s. HDD interface transfer rate. 6 Gbit/s. Storage drive buffer size. 512 MB. Component for. NAS. Type. HDD. Interface. Serial ATA III. HDD size. 3.5". HDD speed. 7200 RPM. HDD capacity. 12 TB. Power. Operating voltage. 5 / 12 V. General. Product family. Red Pro. Operational conditions. Storage temperature (T-T). -40 - 70 °C. Operating temperature (T-T). 0 - 60 °C. Weight & dimensions. Height. 26.1 mm. Depth. 147 mm. Width. 101.6 mm. Packaging data. Quantity per pack. 1 pc(s). Other features. Certification. BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL. Warranty period. 5 year(s)
Backtotheoffice.co.uk
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£315.99
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Western Digital Red Pro 12 TB 3.5" SATA 7200 RPM Internal NAS Hard Drive WD122KFBX

Enterprise-class hard drives engineered to deliver high performance and reliability to commercial and enterprise NAS environm... moreents. WD Red Pro drives are engineered to handle high-intensity workloads in 24×7 multi-user commercial and enterprise NAS environments. WD Red Pro drives deliver the performance, scalability and dependability businesses require to store, share and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems. Optimized for NAS with NASware Western Digitals exclusive NASware technology fine tunes drive parameters to match NAS system workloads, which helps increase performance and reliability. Designed for Continuous Operation WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability. Tested for Dependable Compatibility Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures. Protected against Excessive Vibration WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis, turbulence is minimized, performance is maintained and drives are protected. Built to Absorb Shock WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures. Engineered with Industry-Leading Technology WD Red Pro 22TB and 24TB hard drives feature Western Digitals proprietary OptiNAND™ technology which leverages integrated iNAND embedded flash to perform key housekeeping functions, freeing up more capacity and improving the overall drive performance. Backed by World-Class Support and Warranty As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle free data storage.
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£335.99
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WD Red Pro 12TB 3.5" SATA3 512MB Cache NAS HDD/Hard Drive

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£337.99
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Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III WD122KFBX

Enterprise-class hard drives engineered to deliver high performance and reliability to commercial and enterprise... moreNAS environments.   Designed specifically with medium or large scale business customers in mind WD Red Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads1 in 24x7 environments WD Red™ Pro is ideal for archiving and sharing as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution.   Optimized for NAS with NASware™ Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads which helps increase performance and reliability.   Designed for Continuous Operation WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability.   Tested for Dependable Compatibility Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.   Protected against Excessive Vibration WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis turbulence is minimized performance is maintained and drives are protected.   Built to Absorb Shock WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.   Engineered with Industry-Leading Technology WD Red Pro 22TB 24TB and 26TB hard drives feature Western Digital’s proprietary OptiNAND™ technology which leverages integrated iNAND embedded flash to perform key housekeeping functions freeing up more capacity and improving the overall drive performance.   Backed by World-Class Support and Warranty As an industry-leading hard drive manufacturer Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle free data storage.   Desktop drives vs. WD Red® Pro It is important to choose a drive purpose-built for RAID-optimized NAS systems to ensure optimum performance and preserve your valuable data. Take the following into consideration when choosing a hard drive for your NAS: - Compatibility: Unlike desktop drives WD Red Pro hard drives are specifically
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Series WD Red (NAS)Compare using chart →
Model overview based on user reviews  
The WD Red Pro series offers a range of capacities, including 6TB and 8TB options, known for their best-in-class speed. However, users have noted that these drives can become quite hot, with temperatures reaching up to 55 degrees in NAS systems, and they can be noisy, producing a noticeable buzz or crackling sound. This noise level, around 37 dB, might be disruptive for home use, especially if placed near sleeping areas. Despite these drawbacks, the drives are appreciated for their performance, and some users have observed improvements in newer models, possibly due to firmware updates. Overall, the WD Red Pro is a solid choice for those prioritizing speed and capacity, provided the noise and heat are manageable in their setup.
Pros

Cons

User reviews 3
Write Review →
good model, liked it.
15 October 2017 
If a noise level of 37 dB is not critical, and good airflow because the best among 6TB does not exist yet. There are 3 HDDs of 6TB released in March 2017 - they show a heating of 53-55 degrees, a few days ago I bought another one made in May 2017 with a sensor heating up to 48 degrees, what is this - probably they changed the firmware??
The main thing is the speed of work - best in class 6 TB
Strong heating, in NAS Asustor 6210T up to 55 degrees; Under heavy load, it's somewhat noisy for home use - it buzzes loudly
use WD Red Pro month or more
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The disc is not bad, but only for use where its noise won't be a disturbance.
16 August 2025 
Purchased the WD4003FFBX at the beginning of the year in a used condition with minimal operating hours. It performs well in operation. Compared to the Toshiba x300 4Tb, the Toshiba vibrates more, but during read-write moments, the knocking from the WD is unpleasant, which subjectively feels even worse than the Toshiba.
CMR, support for different sector sizes (i.e., the disk is converted to 4kn)
Noisier during intensive work moments than the Toshiba X300
Volodimir: use WD WD4003FFBX few months
Discuss
 Show Original
Very noisy - crackling
5 June 2021 
The 8TB drive is very noisy. It crackles during use. If you are buying it for a home NAS, place it somewhere away from where someone sleeps.
Volume
Noise
MrG0d: use WD WD8003FFBX less than month
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WD Red Pro WD122KFBX configurations

Price for WD Red Pro WD122KFBX
WD Red Pro WD2002FFSX 2 TB
64/7200 CMR
from £95.0012 offers
WD Red Pro WD4005FFBX 4 TB
5FFBX
from £122.5212 offers
WD Red Pro WD4001FFSX 4 TB
64/7200
from £259.184 offers
WD Red Pro WD4003FFBX 4 TB
256/7200
from £140.044 offers
WD Red Pro WD6001FFWX 6 TB
6001FFWX
from £329.002 offers
WD Red Pro WD6002FFWX 6 TB
6002FFWX
from £224.983 offers
WD Red Pro WD6003FFBX 6 TB
6003FFBX
from £219.221 offer
WD Red Pro WD6005FFBX 6 TB
6005FFBX
from £162.1215 offers
WD Red Pro WD8003FFBX 8 TB
256/7200
from £179.9919 offers
WD Red Pro WD102KFBX 10 TB
256/7200 CMR
from £310.292 offers
WD Red Pro WD103KFBX 10 TB
512/7200 CMR
from £266.999 offers
WD Red Pro WD121KFBX 12 TB
256 MB
from £331.995 offers
WD Red Pro WD122KFBX 12 TB
512 MB
from £294.8313 offers
WD Red Pro WD141KFGX 14 TB
141KFGX
from £347.942 offers
WD Red Pro WD142KFGX 14 TB
142KFGX
from £330.5611 offers
WD Red Pro WD161KFGX 16 TBfrom £369.5411 offers
WD Red Pro WD181KFGX 18 TBfrom £432.9912 offers
WD Red Pro WD201KFGX 20 TBfrom £437.2510 offers
WD Red Pro WD221KFGX 22 TBfrom £530.1810 offers
WD Red Pro WD240KFGX 24 TBfrom £566.2111 offers
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